EP2944035B1 - Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde - Google Patents

Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde Download PDF

Info

Publication number
EP2944035B1
EP2944035B1 EP14703123.1A EP14703123A EP2944035B1 EP 2944035 B1 EP2944035 B1 EP 2944035B1 EP 14703123 A EP14703123 A EP 14703123A EP 2944035 B1 EP2944035 B1 EP 2944035B1
Authority
EP
European Patent Office
Prior art keywords
optical
optical signal
signal
point
transmitter device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14703123.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2944035A1 (fr
Inventor
Philippe Chanclou
Fabienne SALIOU
Qian DENIEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orange SA
Original Assignee
Orange SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orange SA filed Critical Orange SA
Publication of EP2944035A1 publication Critical patent/EP2944035A1/fr
Application granted granted Critical
Publication of EP2944035B1 publication Critical patent/EP2944035B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU

Definitions

  • the invention is in the field of passive optical networks (PONs) serving subscribers to electronic communications services, and more particularly in the field of passive optical networks having a length-division multiplexing. 'wave.
  • PONs passive optical networks
  • Optical access network architectures typically use a different wavelength in transmission direction, the different users of a network sharing time windows of the signal. This technique called TDM (Time Division Multiplexing) shows limits in terms of maximum bit rates.
  • TDM Time Division Multiplexing
  • WDM Widelength Division Multiplexing
  • a self-tuning WDM PON according to the prior art is presented by the figure 1 .
  • This solution introduces into the PON, in addition to the wavelength multiplexer / demultiplexer mdx1 and mdx2, a reflective optical device M allowing part of the optical signal to return to the source OLTa, another part continuing beyond to reach its destination ONTa.
  • the optical source OLTa and the reflective optical component, or mirror M must be arranged on either side of the wavelength multiplexer / demultiplexer mdx1, since it determines the wavelength ⁇ 1 for each pair.
  • Txa / Rxa transceiver Similarly, other wavelengths are determined for the other PON transmitter / receiver pairs, such as, for example, ⁇ 2 for the transmitter in the optical source OLTb and the receiver in ONTb.
  • the optical source comprises a component called RSOA, for “reflective semi-conductor optical amplifier”, or a component called reflective semiconductor optical amplifier, or a component called SOA, for “semi-conductor optical amplifier”, associated with a reflective module.
  • RSOA reflective semi-conductor optical amplifier
  • SOA reflective semiconductor optical amplifier
  • SOA semiconductor optical amplifier
  • the mirror M is an element that causes the signal to have an optical loss on arrival in the destination device ONTa.
  • One way of compensating for this loss is to associate reflection with an amplification of the signal in the mirror M, but this requires an active optical assembly, that is to say supplied with electric current, which is also problematic because the multiplexer mdx1 demultiplexer / demultiplexer that the CL laser cavity must include is part of a passive PON infrastructure.
  • the amplified mirror M is therefore placed on the side where it is easier to feed it, that is to say the side of the operator of the OLTa operator, as close as possible. This imposes even greater constraints in the other direction, when the source of the optical signal is in ONTa.
  • a similar reflective device should be placed on the other side of mdx2 with respect to ONTa, ie close to mdx1 since this is where it is easier to power the device.
  • Another problem is that the addition of the mirror M between the mdx1 and mdx2 makes the whole WDM PON dedicated to the self-seeded technique, and that it is no longer possible to mix OLTa / ONTa transmitter / receiver pairs according to another technology on the same PON.
  • One of the aims of the invention is to overcome disadvantages of the state of the art.
  • the mirror used for the wavelength tuning is in the receiver device.
  • the optical signal arriving in the receiver device has therefore not suffered the optical losses due to the partial mirror, which the prior art placed in the path between transmitter and receiver.
  • the invention replaces the coupler used according to the prior art for the detection of data, placed in the laser cavity upstream of the optical amplifier, by a an optical detector located not in the laser cavity, but downstream of the optical amplifier, according to an arrangement composed of the optical amplifier and the optical reflector of the receiver device.
  • the optical signal detector can indifferently be integrated on the optical amplifier or on the optical reflector, or be inserted between the two.
  • the optical signal no longer needs to be taken from the laser cavity to be converted, which causes less optical losses for wavelength tuning.
  • the signal range between the transmitting device and the receiving device can thus be increased while preserving the wavelength auto-tuning capability. In this way, it is possible to arrange the mirror in the receiver device, which has other advantages that will be presented later.
  • the optical detector is integrated with the optical amplifier.
  • the receiving device no longer requires a photodetector such as a diode.
  • the amplifier converts the photons that pass through it into a photo-current that is measured directly across the amplifier and then processed as data signal.
  • the realization of the receiver device is simplified.
  • the optical detector is integrated with the optical reflector.
  • the optical reflector may be for example a partial Faraday mirror, or any other partial mirror.
  • the portion of the optical signal passing through the mirror creates a photocurrent in the diode which is subsequently processed as a data signal.
  • the amplification which can be carried out using a SOA semiconductor optical amplifier which has a gain strongly dependent on polarization, is possible in a single polarization axis for the set of polarization states of the incident optical signal.
  • a single polarization axis has the advantage that at a given point of the laser cavity, the optical signal after a round trip returns in the same state of polarization as its initial state, and the signal undergoes the same effects of return travel. only to go.
  • the optical reflector comprises a polarization splitter and a 180 ° polarization rotator, and the received optical signal is separated along polarization axes to form a first separate signal and a second separate signal, the polarization rotator and the optical amplifier being arranged to form a loop with the polarization splitter, the first separated signal flowing in one direction and the second separated signal flowing in the other direction, the two separate signals being united in the splitter. biasing to form an amplified optical signal returned to the transmitting device.
  • the device performs an amplification along a single axis, all the polarization states of the incident optical signal.
  • This allows the use of an SOA semiconductor optical amplifier, which is a common component, and which has the advantage of having an optical gain all the higher as it is highly dependent on polarization.
  • the loop comprises a coupler disposed between the amplifier and the rotator in order to take a part of the light to direct it towards the optical detector.
  • the invention also relates to an optical terminal comprising a receiver device such as that just described and a transmitting device comprising a light source for transmitting an optical signal.
  • This optical terminal is for example an ONT if it is located at the customer, or an OLT if it is located in the central office of the operator. Both ONTs and OLTs have both optical signal transmission and reception functions.
  • the invention also relates to an optical transmission system comprising a transmitting device comprising a light source for transmitting an optical signal, a PON WDM optical network or point-to-point transmitting the optical signal, the system further comprising a receiver device such as the one which just described, receiving the optical signal.
  • the transmitting device is in an OLT
  • the receiving device is an ONT
  • a solution is obtained for implementing the wavelength self-tuning.
  • the OLT-ONT couples not implementing the receiver device according to the invention can continue to use the wavelength tuning technology initially provided for the PON.
  • the problem of power supply of the amplifier is solved since it is in the ONT, which is itself powered, and no longer in the passive infrastructure.
  • the invention also relates to an optical transmission system comprising a PON or point-to-point optical WDM network transmitting an optical signal, the system further comprising two optical terminals such as that just described, the first transmitting the optical signal, the second receiving the optical signal.
  • This method is implemented by the receiver device according to the invention.
  • the figure 2 presents a self-tuning PON WDM optical transmission system, according to a particular embodiment of the invention.
  • a mirror Ref is placed in the receiver device Rx1 of the optical terminal ONT1.
  • the system according to the prior art described with reference to the figure 1 there is no more mirror M in the PON between the multiplexer / demultiplexer mdx1 and mdx2.
  • no modification is to be made in the passive infrastructure of the PON WDM so that it is "self seeded".
  • a second mirror Ref may also be placed in the receiver device Rx1 of the optical terminal OLT1, in order to obtain a WDM PON "self seeded" in both directions.
  • the figure 3 presents the receiver device according to a first embodiment of the invention.
  • the device Rx1_a comprises an optical amplifier Amp_a and an optical reflector Ref_a, amplifying and reflecting all the polarization states of the incident light.
  • the device Rx1_a can be realized either using a RSOA integrating both Amp_a and Ref_a, or using a SOA and a Faraday mirror to implement respectively Amp_a and Ref_a.
  • SOA like the RSOA can advantageously emit along a single polarization axis for more efficiency in terms of optical power.
  • the optical signal is photo-detected directly at the terminals of the Amp_a optical amplifier.
  • the measurement of the electric current generated by the photons gives the electrical signal ES1 which can then be demodulated into a data signal.
  • the figure 4 presents the steps of the method of receiving an optical signal implementing the receiver device according to the first embodiment of the invention.
  • the receiver device Rx1_a receives from PON WDM the optical signal, represented here by its wavelength ⁇ 1, transmitted by the transmitter Tx1 of a remote optical terminal such as OLT1 for example.
  • the received optical signal is amplified by the optical amplifier Amp_a.
  • the amplified optical signal is reflected by the optical reflector Ref_a.
  • the amplified optical signal is photo-detected at the terminals of the optical amplifier Amp_a, in order to generate the electrical signal ES1.
  • the reflected optical signal passes through the optical amplifier Amp_a, before being re-transmitted to the PON WDM.
  • the figure 5 presents the receiver device according to a second embodiment of the invention.
  • the device Rx1_b comprises an optical amplifier Amp_b and a partial optical reflector Ref_b, amplifying and reflecting all the polarization states of the incident light.
  • the device Rx1_b can be realized either using a partial reflector RSOA integrating both Amp_b and Ref_b, or using a SOA and a partial Faraday mirror to implement respectively Amp_b and Ref_b.
  • SOA like the RSOA can advantageously emit along a single polarization axis for more efficiency in terms of optical power.
  • the optical signal passing through the partial mirror Ref_b without being reflected is photo-detected by a diode D_b arranged behind Ref_b.
  • the diode D_b generates the electrical signal ES1 which can then be demodulated into a data signal.
  • the figure 6 presents the steps of the method of receiving an optical signal implementing the receiver device according to the second embodiment of the invention.
  • the receiver device Rx1_b receives from PON WDM the optical signal, represented here by its wavelength ⁇ 1, transmitted by the transmitter Tx1 of a remote optical terminal such as OLT1 for example.
  • the received optical signal is amplified by the optical amplifier Amp_b.
  • the amplified optical signal is reflected by the optical reflector Ref_b.
  • the optical signal amplified and filtered by the partial optical reflector Ref_b is photo-detected by a diode D_b, in order to generate the electrical signal ES1.
  • the reflected optical signal passes through the optical amplifier Amp_b, before being re-transmitted to the PON WDM.
  • the figure 7 presents the receiver device according to a third embodiment of the invention.
  • the device Rx1_c comprises an optical amplifier Amp_c, a polarization separator Sep_c and a polarization rotator 180 ° Rot_c, forming a bi-directiomel optical loop.
  • the Amp_c optical amplifier can be realized using an SOA.
  • the SOA can advantageously emit along a single polarization axis for greater efficiency in terms of optical power.
  • the optical signal is photo-detected directly across the Amp_c optical amplifier.
  • the measurement of the electric current generated by the photons gives the electrical signal ES1 which can then be demodulated into a data signal.
  • the figure 8 presents the steps of the method of receiving an optical signal implementing the receiver device according to the third embodiment of the invention.
  • the receiving device Rx1_c receives the PON WDM the signal optical, represented here by its wavelength ⁇ 1, transmitted by the transmitter Tx1 of a remote optical terminal such as OLT1 for example.
  • the received optical signal is split into two signals, ⁇ 1_1 and ⁇ 1_2, by the polarization separator Sep_c.
  • the signal ⁇ 1_1 is amplified by the optical amplifier Amp_c.
  • the signal ⁇ 1_2 is processed by the polarization rotator Rot_c which reverses at 180 ° its polarization axes.
  • the amplified signal ⁇ 1_1 passes in turn in the polarization rotator Rot_c but in the other direction.
  • the signal ⁇ 1_2, whose polarization is now opposite, is amplified by the optical amplifier Amp_c.
  • the signals ⁇ 1_1 and ⁇ 1_2, amplified and reversed, go back into the separator Sep_c but in the other direction, to be joined and re-transmitted to the PON WDM.
  • the amplified and inverted optical signal is photo-detected at the terminals of the optical amplifier Amp_c, in order to generate the electrical signal ES1.
  • the figure 9 presents the receiver device according to a fourth embodiment of the invention.
  • the device Rx1_d comprises an optical amplifier Amp_d, a polarization separator Sep_d and a polarization rotator 180 ° Rot_d, forming a bidirectional optical loop.
  • the Amp_d optical amplifier can be realized using an SOA.
  • the SOA can advantageously emit along a single polarization axis for greater efficiency in terms of optical power.
  • the device Rx1_d also comprises a coupler Cpl_d taking part of the optical signal carried by the bidirectional optical loop.
  • the sampled signal is photo-detected by a diode D_d generating the electrical signal ES1 which can then be demodulated into a data signal.
  • the figure 10 presents the steps of the method of receiving an optical signal implementing the receiver device according to the fourth embodiment of the invention.
  • the receiver device Rx1_d receives from PON WDM the optical signal, represented here by its wavelength ⁇ 1, transmitted by the transmitter Tx1 of a remote optical terminal such as OLT1 for example.
  • the received optical signal is split into two signals, ⁇ 1_1 and ⁇ 1_2, by the polarization separator Sep_d.
  • the signal ⁇ 1_1 is amplified by the optical amplifier Amp_d.
  • the signal ⁇ 1_2 is processed by the polarization rotator Rot_d which reverses at 180 ° its polarization axes.
  • the amplified signal ⁇ 1_1 passes in turn in the polarization rotator Rot_d but in the other direction.
  • the signal ⁇ 1_2, whose polarization is now opposite, is amplified by the optical amplifier Amp_d.
  • the signals A1_1 and A1_2, amplified and reversed, go back into the separator Sep_d but in the other direction, to be joined and re-transmitted to the PON WDM.
  • part of the amplified and inverted optical signal carried by the bidirectional optical loop is taken between the amplifier Amp_d and the rotator Rot_d by the optical coupler Cp1_d.
  • the optical signal taken is photo-detected by a diode D_d, in order to generate the electrical signal ES1.
  • a receiver device such as the device Rx_a, Rx_b, Rx_c, or Rx_d, whose descriptions have just been given, can be integrated in a reception module of an optical line termination (OLT) or optical network equipment ( ONT). Such a device can also be implemented in an equipment separate from the optical termination equipment, in a dedicated or non-dedicated network equipment. receiving signals from an optical distribution network.
  • ONT optical line termination
  • ONT optical network equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computing Systems (AREA)
  • Optical Communication System (AREA)
EP14703123.1A 2013-01-10 2014-01-09 Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde Active EP2944035B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1350227A FR3000855A1 (fr) 2013-01-10 2013-01-10 Procede et dispositif reflechissant pour realiser la fonction receptrice d'un reseau d'acces optique utilisant un multiplexage en longueur d'onde
PCT/FR2014/050035 WO2014108642A1 (fr) 2013-01-10 2014-01-09 Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde

Publications (2)

Publication Number Publication Date
EP2944035A1 EP2944035A1 (fr) 2015-11-18
EP2944035B1 true EP2944035B1 (fr) 2019-05-22

Family

ID=47989237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14703123.1A Active EP2944035B1 (fr) 2013-01-10 2014-01-09 Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde

Country Status (7)

Country Link
US (1) US9537600B2 (ko)
EP (1) EP2944035B1 (ko)
JP (1) JP6267234B2 (ko)
KR (1) KR102032536B1 (ko)
CN (1) CN104995854B (ko)
FR (1) FR3000855A1 (ko)
WO (1) WO2014108642A1 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104508921B (zh) * 2012-07-30 2019-04-16 奥普林克通信公司 外腔式法布里-珀罗激光器
EP3402093B1 (en) * 2016-01-28 2021-09-29 Huawei Technologies Co., Ltd. Light emission device with tunable wavelength
EP3672122B1 (en) * 2018-10-09 2024-06-19 Huawei Technologies Co., Ltd. Calibration apparatus and method, and wavelength division multiplexing system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110200333A1 (en) * 2010-02-18 2011-08-18 Universitat Politecnica De Catalunya (Upc) Method and apparatus for bidirectional optical link using a single optical carrier and colorless demodulation and detection of optical frequency shift keyed data

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3511445B2 (ja) * 1997-02-13 2004-03-29 日本電信電話株式会社 光双方向伝送システム
US6669367B2 (en) * 2001-10-10 2003-12-30 Applied Optoelectronics, Inc. Optical fiber with mirror for semiconductor laser
KR100889861B1 (ko) * 2007-05-09 2009-03-24 광주과학기술원 자체 잠김을 이용한 파장분할다중 방식의 수동형 광통신시스템, 이에 사용되는 중앙 기지국 및 데이터 전송 방법
WO2009123572A1 (en) * 2008-03-31 2009-10-08 Agency For Science, Technology And Research Remote node for wavelength-division-multiplexed passive optical network
US8417118B2 (en) * 2009-08-14 2013-04-09 Futurewei Technologies, Inc. Colorless dense wavelength division multiplexing transmitters
US8559775B2 (en) * 2010-07-22 2013-10-15 Dubravko Ivan Babic Colorless optical network architecture and network components
US8774630B2 (en) * 2010-10-15 2014-07-08 Futurewei Technologies, Inc. Method, apparatus, and system for a self-seeded external cavity laser for dense wavelength division multiplexing applications
KR20120070260A (ko) * 2010-12-21 2012-06-29 한국전자통신연구원 파장 분할 다중화 기반 수동형 광가입자망용 씨앗 광 모듈 및 그 구동 방법
EP2512043B1 (en) * 2011-04-14 2014-01-22 Alcatel Lucent Polarization stabilization scheme for un-cooled self-tuning cavity for colorless ultra broadband PON
CA2833624C (en) 2011-04-22 2016-07-26 Huawei Technologies Co., Ltd. Optical transceiver apparatus and wavelength division multiplexing passive optical network system
TWI473445B (zh) * 2011-09-09 2015-02-11 Ind Tech Res Inst 被動光網路的光網路單元與其控制方法
US8970945B2 (en) * 2012-07-24 2015-03-03 University of Zagreb, Faculty of Electrical Engineering and Computing Modulation averaging reflectors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110200333A1 (en) * 2010-02-18 2011-08-18 Universitat Politecnica De Catalunya (Upc) Method and apparatus for bidirectional optical link using a single optical carrier and colorless demodulation and detection of optical frequency shift keyed data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SUGIE T ET AL: "Wavelength channel data rewrite using saturated SOA modulator for WDM networks with centralized light sources", JOURNAL OF LIGHTWAVE TECHNOLOGY, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 21, no. 11, 1 November 2003 (2003-11-01), pages 2546 - 2556, XP011103873, ISSN: 0733-8724, DOI: 10.1109/JLT.2003.819532 *

Also Published As

Publication number Publication date
WO2014108642A1 (fr) 2014-07-17
CN104995854A (zh) 2015-10-21
JP6267234B2 (ja) 2018-01-24
US9537600B2 (en) 2017-01-03
KR20150105640A (ko) 2015-09-17
JP2016508344A (ja) 2016-03-17
US20150341136A1 (en) 2015-11-26
KR102032536B1 (ko) 2019-10-15
CN104995854B (zh) 2017-06-30
FR3000855A1 (fr) 2014-07-11
EP2944035A1 (fr) 2015-11-18

Similar Documents

Publication Publication Date Title
KR101311711B1 (ko) 조정 가능한 로컬 오실레이터를 포함하는 코히어런트 광학 시스템
US20200244367A1 (en) Fiber communication systems and methods
US9614622B2 (en) Wavelength-reuse fiber-optic transmitters
US20110135314A1 (en) Waveguide Optically Pre-Amplified Detector with Passband Wavelength Filtering
JP5805126B2 (ja) 両方向光通信ネットワークで分布ラマン増幅および遠隔ポンピングを使用する方法および装置
US9432122B2 (en) Optical networking unit (ONU) packaging
EP3614580B1 (fr) Circuit de connexion d'un reseau local a une fibre optique sur laquelle sont susceptibles de cheminer des signaux lumineux conformes a des standards de communication optique differents
EP2510390A1 (en) Waveguide optically pre-amplified detector with passband wavelength filtering
TW201003272A (en) Laser source based on fabry-perot laser diodes and seeding method using the same
US20140140701A1 (en) Time and wavelength-shifted dynamic bidirectional system
EP2944035B1 (fr) Procédé et dispositif réfléchissant pour réaliser la fonction réceptrice d'un réseau d'accès optique utilisant un multiplexage en longueur d'onde
EP0881790B1 (fr) Système de transmission optique à compensation dynamique de la puissance transmise
EP0744797A1 (fr) Source de longueurs d'onde multiples
EP2050213A2 (fr) Reseau optique passif longue distance utilisant la modulation deportee d'un signal optique d'amplification
EP2408125B1 (en) Optical transmitter for wdm passive optical network
EP2865110A1 (fr) Dispositif lumineux reflechissant destine a un reseau d'acces optique wdm pon comprenant une source lumineuse avec un milieu de gain optique
EP2163011B1 (fr) Reseau optique longue distance avec localisation des moyens d'amplification au niveau du central optique
Schrenk et al. FSK+ ASK/ASK operation for optical 20/10 Gbps access networks with simple reflective user terminals
Lee et al. A pre-spectrum-sliced seed light source for multiple spectrum-sliced WDM-PONs based on R-SOAs
WO2008001020A1 (fr) Réseau d'accès optique passif longue distance
FR2923336A1 (fr) Transmetteur accordable en longueurs d'onde et a filtrage integre pour un reseau de communication optique (d)wdm, et transpondeur correspondant
WO2009083700A2 (fr) Dispositif d'amplification de la puissance optique d'au moins un premier signal optique incident et d'au moins un deuxième signal optique incident

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150807

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: SALIOU, FABIENNE

Inventor name: CHANCLOU, PHILIPPE

Inventor name: DENIEL, QIAN

17Q First examination report despatched

Effective date: 20160907

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H04B 10/60 20130101ALI20181119BHEP

Ipc: H04B 10/272 20130101AFI20181119BHEP

Ipc: H01S 5/14 20060101ALI20181119BHEP

Ipc: H04J 14/02 20060101ALI20181119BHEP

Ipc: H04B 10/50 20130101ALI20181119BHEP

INTG Intention to grant announced

Effective date: 20181211

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014047159

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1137351

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190615

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190522

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190922

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190822

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190823

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190822

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1137351

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014047159

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

26N No opposition filed

Effective date: 20200225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190522

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190922

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231219

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231219

Year of fee payment: 11